/* Distro shared shell: left sidebar with the global product selector at its
   top, followed by the nav. No top bar. Loaded by every page except
   login.html. Page-specific styles stay in each page. */
.shell-layout { display: flex; min-height: 100vh; align-items: stretch; }
.shell-sidebar {
  width: 220px; flex-shrink: 0;
  position: fixed; left: 0; top: 0; bottom: 0;
  overflow-y: auto;
  background: #0d1117; border-right: 1px solid #21262d;
  padding: 1rem 0.75rem; box-sizing: border-box;
}
.shell-sidebar .shell-brand {
  display: block; font-size: 1.25rem; font-weight: 700; color: #e6edf3;
  text-decoration: none; padding: 0.25rem 0.75rem 0.75rem; letter-spacing: -0.02em;
}
.shell-sidebar .shell-product-wrap {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding: 0 0.75rem 1rem;
}
.shell-sidebar .shell-product-wrap label { color: #8b949e; font-size: 0.85rem; }
.shell-sidebar .shell-product-wrap select {
  width: 100%; box-sizing: border-box;
  background: #161b22; color: #e6edf3; border: 1px solid #30363d; border-radius: 8px;
  padding: 0.5rem 0.6rem; font-size: 0.95rem;
}
.shell-nav { display: flex; flex-direction: column; gap: 0.15rem; }
.shell-nav a {
  display: block; padding: 0.55rem 0.75rem; border-radius: 8px;
  color: #8b949e; text-decoration: none; font-size: 0.95rem;
}
.shell-nav a:hover { color: #e6edf3; background: #161b22; }
.shell-nav a.active { color: #e6edf3; background: #1f6feb; font-weight: 600; }
.shell-body { margin-left: 220px; flex: 1; min-width: 0; display: flex; flex-direction: column; }
.shell-content { flex: 1; min-width: 0; }
/* Inbox: highlight items belonging to the dropdown-selected product. */
.item.is-selected-product { border-color: #1f6feb; box-shadow: 0 0 0 1px #1f6feb inset; }
/* Home cards: highlight the dropdown-selected product. */
.product-card.is-selected { border-color: #1f6feb; box-shadow: 0 0 0 1px #1f6feb inset; }

@media (max-width: 800px) {
  .shell-layout { display: block; }
  .shell-sidebar {
    position: static; width: auto; border-right: 0; border-bottom: 1px solid #21262d;
    padding: 0.75rem; overflow-x: auto;
  }
  .shell-sidebar .shell-brand { display: inline-block; padding: 0.25rem 0.75rem 0.25rem 0; vertical-align: middle; }
  .shell-sidebar .shell-product-wrap { display: inline-flex; flex-direction: row; align-items: center; gap: 0.5rem; padding: 0 0.75rem 0 0; vertical-align: middle; }
  .shell-sidebar .shell-product-wrap select { width: auto; }
  .shell-nav { flex-direction: row; flex-wrap: wrap; display: inline-flex; vertical-align: middle; }
  .shell-nav a { padding: 0.4rem 0.6rem; white-space: nowrap; }
  .shell-body { margin-left: 0; }
}